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Finding the Fourth Proportional to 69,873.12, 104,824.80 and 23,126.40

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Solution

The fourth proportional to 69,873.12, 104,824.80 and 23,126.40 is: 34,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,873.12 : 104,824.80 = 23,126.40 : x
  2. Step 2: Convert to fraction form
    69,873.12/104,824.80 = 23,126.40/x
  3. Step 3: Cross multiply
    69,873.12x = 104,824.80 × 23,126.40
  4. Step 4: Simplify right side
    69,873.12x = 2,424,220,254.72
  5. Step 5: Solve for x
    x = 2,424,220,254.72/69,873.12
  6. Step 6: Final answer
    x = 34,694.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.